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Tunnel damage from rudder cable

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jhasbrouck(at)woh.rr.com
Guest

Posted: Sun Oct 29, 2006 8:30 am Post subject: Tunnel damage from rudder cable

A while back there was a posting regarding damage  to the tunnel side wall from the rudder cables where they attach to the rudder  pedals.  I don't remember a resolution to this issue.  I'm at the  point of mounting the rudder pedals to the airframe and wondered if the  problem was due to using the more forward of the mounting points for the rudder  bearing blocks.  Since the tunnel tapers as you move aft I surmise the more  aft mounting point for the rudder blocks would give more clearance.  Was  this a one time problem?  Those flying, what position did you use for the  rudder pedals?  I'm 6' 3" and guess that I'd like as much room for my legs  as possible.

  

 John

 #40264

    [quote][b]

Tim(at)MyRV10.com
Guest

Posted: Sun Oct 29, 2006 9:52 am Post subject: Tunnel damage from rudder cable

I'm almost 6'2", and used the forward mounting of the pedals, which

works well. I'm sure the aft mounting would work for me too, but I'd

have to take up more rear-seat room by moving my seat back a couple

inches.  My wife would probably prefer the aft mounting, as she's more

like 5'2", and can't reach the pedals well without scooting up in

her seat about 6".  I have thought about remounting mine if I could

do it easy enough, just to try it for her.  I may try to just add

some blocks to her pedals though.



As for the cable rubbing, my cables are pretty close, but they don't

rub, so it's working out for me.



Tim Olson - RV-10 N104CD - Flying

do not archive

John Hasbrouck wrote:

 	  Quote: 	
		   A while back there was a posting regarding damage to the tunnel side 

 wall from the rudder cables where they attach to the rudder pedals.  I 

 don't remember a resolution to this issue.  I'm at the point of mounting 

 the rudder pedals to the airframe and wondered if the problem was due to 

 using the more forward of the mounting points for the rudder bearing 

 blocks.  Since the tunnel tapers as you move aft I surmise the more aft 

 mounting point for the rudder blocks would give more clearance.  Was 

 this a one time problem?  Those flying, what position did you use for 

 the rudder pedals?  I'm 6' 3" and guess that I'd like as much room for 

 my legs as possible.

  

 John

 #40264

 

 *

capsteve

Joined: 09 Jan 2006
Posts: 111
Location: NIAGARA FALLS NY

Posted: Sun Oct 29, 2006 10:45 pm Post subject: Tunnel damage from rudder cable

When I was putting the rudder pedals in I checked fore and aft positions and noticed the inside rudder cable bolts hit the tunnel when I had the tunnel cover removed.  As soon as the cover was installed there was no contact.   

Steve  

40205  

   

   

   

--

flysrv10(at)gmail.com
Guest

Posted: Mon Oct 30, 2006 3:30 am Post subject: Tunnel damage from rudder cable

This was a condition that I experienced.  I am not sure why my passenger pedal rubbed against the tunnel skin (left rudder).  I have since shorten the hanging rod and used spacers in the blocks to move the pedal to the right.  I am using the rear most mounting holes for the pedals which would create the most space between the pedal and the tunnel.

I saw this condition developing during construction but ignored it thinking that, since everything else fit so well, this will would work it's way as I installed the tunnel cover.



So, my recommendation is to trial-fit the pedals before you rivet the front cover.

 Rob Kermanj



 



On Oct 29, 2006, at 11:29 AM, John Hasbrouck wrote:

 	  Quote: 	
		  A while back there was a posting regarding damage to the tunnel side wall from the rudder cables where they attach to the rudder pedals.  I don't remember a resolution to this issue.  I'm at the point of mounting the rudder pedals to the airframe and wondered if the problem was due to using the more forward of the mounting points for the rudder bearing blocks.  Since the tunnel tapers as you move aft I surmise the more aft mounting point for the rudder blocks would give more clearance.  Was this a one time problem?  Those flying, what position did you use for the rudder pedals?  I'm 6' 3" and guess that I'd like as much room for my legs as possible.

 

John

#40264

 	  Quote: 	
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AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Mon Oct 30, 2006 9:34 am Post subject: Tunnel damage from rudder cable

Randy (#006) got a ding on his DAR inspection for the connection of the rudder pedal cables to pedal attachment.  It was in regards to bolt, nut and cotter pin orientation.  The DAR was concerned that footwear would disengage the attachment over time.

 

One of my 200+ changes was to weld a horizontal tab off each inboard vertical pedal mount (cutting away the factory vertical attachment)and scribe an arced cut-out into the tunnel sidewalls.  The objective was to keep the cables straight inside of the tunnel.  Connection was from within the tunnel, eliminating the connecting hardware on the outside sidewalls of the tunnel.  Every bend and every inch of tubing increases the resistance to the cable movement.

 

John 

#40600



________________________________



From: owner-rv10-list-server(at)matronics.com on behalf of John Hasbrouck

Sent: Sun 10/29/2006 8:29 AM

To: RV LIST

Subject: Tunnel damage from rudder cable

A while back there was a posting regarding damage to the tunnel side wall from the rudder cables where they attach to the rudder pedals.  I don't remember a resolution to this issue.  I'm at the point of mounting the rudder pedals to the airframe and wondered if the problem was due to using the more forward of the mounting points for the rudder bearing blocks.  Since the tunnel tapers as you move aft I surmise the more aft mounting point for the rudder blocks would give more clearance.  Was this a one time problem?  Those flying, what position did you use for the rudder pedals?  I'm 6' 3" and guess that I'd like as much room for my legs as possible.

 

John

#40264

toaster73(at)earthlink.ne
Guest

Posted: Tue Oct 31, 2006 5:44 pm Post subject: Tunnel damage from rudder cable

Someone made this mod already I saw it on some website can't recall. Was it 

Dominici?

-Chris

#40072



---

orchidman

Joined: 10 Jul 2006
Posts: 277
Location: Oklahoma City - KRCE

Posted: Tue Oct 31, 2006 7:02 pm Post subject: Re: Tunnel damage from rudder cable

 	  toaster73(at)earthlink.ne wrote: 	
		  Someone made this mod already I saw it on some website can't recall. Was it 

Dominici?

-Chris

#40072



--- 	


A friend and I went up to John Nys this weekend and I took these shots of a 10 he is working on in his shop.  I think this is the type mod you are describing.

gary

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wcurtis(at)core.com
Guest

Posted: Wed Nov 01, 2006 10:18 am Post subject: Tunnel damage from rudder cable

This is a great idea!  Now you gonna make me take my installed rudder pedals apart so I can do this mod.  >A friend and I went up to John Nys this weekend and I took  >these shots of a 10 he is working on in his shop.  I think > this is the type mod you are describing.  >gary > >Attachments:  >http://forums.matronics.com//files/pict1320s_450.jpg >http://forums.matronics.com//files/pict1316s_174.jpg  William Curtis http://nerv10.com/  [quote][b]

wvu(at)ameritel.net
Guest

Posted: Wed Nov 01, 2006 10:34 pm Post subject: Tunnel damage from rudder cable

Are those AN3's?  Do you know if John did his studies to ensure they  can withstand the forces on the pedals?

 Anh

 #141

 [quote]   ---

orchidman

Joined: 10 Jul 2006
Posts: 277
Location: Oklahoma City - KRCE

Posted: Thu Nov 02, 2006 6:16 am Post subject: Re: Tunnel damage from rudder cable

 	  wvu(at)ameritel.net wrote: 	
		  Are those AN3's?  Do you know if John did his studies to ensure they  can withstand the forces on the pedals?

 Anh

 #141

	


Didn't ask.  I would think that a 3 would be an absolute minimum.  I am also a little concerned about the design of the tab flexing in a max petal deflection.  

But that is all about experimental building.  The concept is there, now the next improvement

wcurtis(at)core.com
Guest

Posted: Thu Nov 02, 2006 10:05 am Post subject: Tunnel damage from rudder cable

I noticed that his rudder pedals had a horizontal tab at the cable attach point.  My cables do not have this.  Did John add these to allow for possible deflection?   >Didn't ask.  I would think that a 3 would be an absolute >minimum.  I am also a little concerned about the design >of the tab flexing in a max petal deflection. > >But that is all about experimental building.  The concept >is there, now the next improvement   [Question] > >> Are those AN3's?  Do you know if John did his studies to >> ensure they  can withstand the forces on the pedals? >>  Anh >>  #141  >>>http://forums.matronics.com//files/pict1320s_450.jpg >>>http://forums.matronics.com//files/pict1316s_174.jpg  William  40237 - Fuse/Finish http://wcurtis.nerv10.com/  [quote][b]

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